Consulta: subjectFacets:"Plant-animal interactions"
Registros recuperados: 2
Data/hora: 08/06/2024 16:41:37

Sex-mediated herbivory by galling insects on Baccharis concinna (Asteraceae)
Provedor de dados: 92
Autores: Carneiro,Marco Antonio A.; Fernandes,Geraldo Wilson; Souza,Og F. F. de; Souza,Wyller Vicente M.
The interaction patterns between the dioecious shrub Baccharis concinna Barroso (Asteraceae) and its speciose galling insect community were studied in southeastern Brazil. Two hypotheses were tested in this study: "the differential reproduction and growth hypothesis" that predicts that male plants present fewer reproductive structures and are larger than female plants; and the 'sex-biased herbivory hypothesis' that predicts that male plants support a larger abundance of insect galls than female plants. Plants did not show sexual dimorphism in growth (= mean leaf number). However, male plants had longer shoots and a lower average number of inflorescences than female plants. These results corroborate the hypothesis that male plants grow more and reproduce...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dioecy; Community structure; Insect galls; Plant gender; Plant-animal interactions.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262006000300009

Floral biology and pollination in Brazil: history and possibilities
Provedor de dados: 39
Autores: Oliveira,Paulo Eugênio; Rech,André Rodrigo.
ABSTRACT Pollination research in Brazil virtually started with Fritz Muller, whose insights supported Darwin's evolutionary theory. Pollination systems of Brazilian plants were studied mainly by travelling researchers until early last century when native or resident geneticists began to use floral biology information to deal with crop acclimatization and breeding, later applying similar experiments and techniques to investigate native plants. Bee geneticists studied common pollinators of crops, such as coffee and Citrus, and even the introduction of feral African honeybees, despite their associated problems, stimulated pollination research. Geneticists attracted Dobzhansky to Brazil, where his research on tree distribution in the Brazilian Amazon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding system; Ecological services; Floral biology; Plant conservation; Plant-animal interactions; Pollination.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300321